Method Of Coordinating The Transmission Resources In A Coordinated Multipoint Transmission/Receiving Communication Network

Abstract

A method of coordinating the transmission resources used by the UEs for UL sounding transmission in a communication network wherein multiple base stations are receiving the sounding transmission from multiple UEs. the method including defining at least one coordinated multi-point transmission set including at least one of the plurality of base station, and/or grouping at least one of the plurality of user equipments of the at least one coordinated multi-point transmission set, transmitting coordinated sounding reference signals in the at least one coordinated multi-point transmission set, and estimating the full UL channel status based on the transmitted coordinated sounding signal.

1 . A method of coordinating transmission resources used by user equipments for an uplink sounding transmission in a communication network comprising a plurality of user equipments, a plurality of coordinated multi-point transmission sets, and a plurality of base stations, wherein each coordinated multi-point transmission set comprises at least a respective one of the base stations, the method comprising:
 determining for at least one of the coordinated multipoint transmission sets a specific uplink coordinated sounding resource based on predetermined parameters of the coordinated multi-point transmission set, and   distributing parameters characterizing the specific coordinated sounding resource to each base station of the at least one of the coordinated multi-point transmission sets.   
     
     
         2 . The method according to  claim 1 , further comprising: receiving of an uplink sounding reference signal using the distributed specific uplink coordinated sounding resource. 
     
     
         3 . The method according to  claim 1 ,
 wherein the specific uplink coordinated sounding resource is characterized by its time domain, frequency domain or code domain, and/or   wherein the transmission of the respective coordinated sounding reference signals is done by using sets of orthogonal resources.   
     
     
         4 . The method according to  claim 1 ,
 wherein the sounding transmission parameter is one out of the group consisting of:   coordinated multi-point transmission set specific base sequence,   sequence generation relevant parameters, and   sounding opportunity of time and frequency domain.   
     
     
         5 . The method according to  claim 1 , further comprising:
 determining the sounding transmission parameter.   
     
     
         6 . The method according to  claim 1 , further comprising:
 storing the sounding transmission parameter in a storage unit.   
     
     
         7 . A network element for a communication network, wherein the network element is a member of a coordinated multi-point transmission set and adapted to determine a specific coordinated sounding resource for UL sounding and is further adapted to distribute parameters characterizing the specific coordinated sounding resource to each base station of the at least one of the coordinated multi-point transmission sets. 
     
     
         8 . A communication network comprising:
 a plurality of base stations,   a plurality of user equipments,   wherein the plurality of base stations and the plurality of user equipments are sorted into a plurality of coordinated multi-point transmission sets, and   wherein at least one of the base stations or user equipment is formed by a network element according to  claim 7 .   
     
     
         9 . A program element, which, when being executed by a processor, is adapted to control or carry out a method according  claim 1 . 
     
     
         10 . A computer-readable medium, in which a computer program is stored which, when being executed by a processor, is adapted to control or carry out a method according to  claim 1 .